Embrayage SIP "COSA" Standard

PIAGGIO revolutionized the world of large frame motor transmissions with the introduction of the COSA 2 clutch. All the existing large frame clutch problems were solved.

Since around 1995 the COSA 2 clutch has been used in all VESPA PX EFL/'98/MY /'11 and of course, the COSA 2 models build by PIAGGIO. It comes complete with 4 friction plates, 8 springs and a sturdy clutch basket design. Due to the higher pressure created by the increased number of springs and the increased frictional surface area power can be transmitted more effectively between the crankshaft and the gearbox. Precision laser-cut clutch plates prevent any problems with snagging clutches. No jerking, no slipping, an optimal release point and all that combined with a light, easy clutch lever action, even when using a stronger set of springs.

In the past, there were enormous fluctuations in the quality of NEWFREN and PIAGGIO parts. That is why we recommend that all Largeframe riders with more that 15PS use the SIP clutch.

This SIP COSA 2 Standard / Sport clutch is equipped with the SIP clutch basket that was especially produced for this purpose: hardened by induction, precise notch, reinforced securing ring. The interior of the clutch basket, designed developed and produced exclusively for SIP, has 16 clutch spring recesses so that the 8 or 16 springs from the COSA 2 clutch type assembly can be used, one piece outer ring etc. This clutch won’t slip, is ready for plug&play use and works just the way it was originally supposed to.

Features SIP Standard Clutch:

- up to 15 PS

- hardened basket by induction with precise notch

- reinforced securing ring

- forged inner part and riveted 16-times

- equipped with 8 / 16 spring

- spring stiffness: L, 8 springs used

- Plug&Play

Features SIP Sport Clutch:

- up to 25 PS

- hardened basket by induction with precise notch

- reinforced securing ring

- forged inner part and riveted 16-times

- equipped with 8 / 16 spring

- spring stiffness: L, 8 springs used

- Plug&Play

The clutch basket of the SIP COSA 2 Race clutch is CNC machined from a solid aluminium alloy block and is hardened using a nitration process for added durability. The groove of the circlip has been optimized, holes and cut-outs reduce the weight. The interior of the clutch basket, designed developed and produced exclusively for SIP, has 16 clutch spring recesses so that the 8 or 16 springs from the COSA 2 clutch type assembly can be used. The rivets have also been specially produced for this unit, with grooves for ease assembly and an anti corrosive treatment. Due to this we can keep this item at an affordably low price, coupled with the use of the highest quality materials.

Features SIP Race Clutch:

- up to 25 PS

- CNC machined basket with precise notch

- reduced weight through cut-outs

- forged inner part and riveted 16-times

- equipped with 8 / 16 spring

- spring stiffness: L, 8 springs used

- bore out clutch cover necessary

The overall design of the SIP 'Ultrastrong' clutch basket is based upon that of the MMW 'Superstrong' type and is also constructed for SIP by MMW. Up till now this type of clutch was only really suitable for dedicated race use, but now thanks to a slimmer design can also be considered for use as part of a road-going touring motors set-up. The SIP version of the 'Superstrong' clutch also does without the standard COSA 2 clutches baseplate, which has been replaced by a wave shaped baseplate. There are no rivets that can shear in its construction and ten COSA 2 clutch springs are installed. As far as the materials and production quality of these MMW manufactured clutch bushes are concerned, these items represent absolute state-of-the-art motor components. In contrast to the original items, these are machine-pressed directly onto the base-plate of the clutch assembly and then reduces clutch grabbing or judder.

The main difference of the MMW 'Superstrong' clutch versions can be found in the design of the clutch basket. The holes that are situated on the sides of the MMW versions basket are absent on the SIP type. The SIP clutch basket is also constructed using a more easily modifiable EC80 type steel, which is better known as F1 steel in Italy, as opposed to the MMW clutch basket which relies on a 42CroMo4 material for its manufacture. Our SIP clutch basket was conceived to fit more easily beneath the original clutch cover, with minimal modification being required. Some clutch covers/casings only need a couple of internal drip ridges to be carefully snapped off using a normal set of pliers! This clutch basket type has already been successfully proven in many motors capable of producing up to 30PS and even more. We have decided to call it a 'sport' clutch basket and not a 'race' type due to the fact that it is compatible for inclusion in the set-up of your motor with only minimal modification of your crankcases being necessary.

Features SIP Ultrastrong Clutch:

- up to 25 PS

- basket incl. inner part CNC machined with precise notch

- spring stiffness: L, 10 springs used

- Plug&Play

Attention: Not compatible with PINASCO clutch bush part no. 59366000!

SIP-TIP: Don’t forget to order new pressure plate, push rod, locking washer and nut. Make sure to soak the clutch plates in gearbox oil once again.

Consumers, i.e. any individual acting for purposes which are wholly or mainly outside those
individual's trade, business, craft or profession, are entitled to cancel any contract on the
following conditions:

Instructions for cancellation

Right to cancel
You have the right to cancel this contract within fourteen days without giving any
reason.
The cancellation period will expire after 14 days from the day on which you acquire, or a
third party other than the carrier and indicated by you acquires, physical possession of
the goods.
To exercise the right to cancel, you must inform us (SIP Scootershop GmbH,
Marie-Curie-Str. 4, 86899 Landsberg am Lech, Deutschland, Tel.: +49 (o)8191-96999-60,
Fax: +49 (o)8191-96999-70, E-Mail: [email protected]) of your decision to cancel
this contract by a clear statement (e.g. a letter sent by post, fax or e-mail). You may use
the attached model cancellation form, but it is not obligatory.
To meet the cancellation deadline, it is sufficient for you to send your communication
concerning your exercise of the right to cancel before the cancellation period has
expired.

Effects of cancellation
If you cancel this contract, we will reimburse to you all payments received from you,
including the costs of delivery (except for the supplementary costs arising if you choose
a type of delivery other than the least expensive type of standard delivery offered by us)
without undue delay and not later than fourteen days after the day on which we are
informed about your decision to cancel this contract. We may make a deduction from
the reimbursement for loss in value of any goods supplied, if the loss is the result of
unnecessary handling by you. We will make the reimbursement using the same means
of payment as you used for the initial transaction, unless you have expressly agreed
otherwise. In any event, you will not incur any fees as a result of the reimbursement. We
may withhold reimbursement until we have received the goods back or you have
supplied evidence of having sent back the goods, whichever is the earliest.
You shall send back the goods or hand them over to us without undue delay and in any
event not later than fourteen days from the day on which you communicate your
cancellation from this contract to us. The deadline is met if you send back the goods
before the period of 14 days has expired.
You will bear the direct cost of returning the goods.
You are only liable for any diminished value of the goods resulting from the handling
other than what is necessary to establish the nature, characteristics and functioning of
the goods

Exclusion and/or premature expiration of the right to cancel
The right to cancel does not apply for consumers who, at the time of concluding the
contract, are not nationals of a member state of the European Union and whose exlusive
residence and address of delivery are located outside of the European Union.

General information
1) Please prevent damage to and contamination of the goods. Please return the goods, if
possible, in the original packaging with all accessories and all packaging components. If
necessary, please use protective outer packaging. If you are no longer in possession of
the original packaging, please use suitable packaging providing adequate protection
against potential transport damage.
2) Please do not return the goods freight forward.
3) Please note that the above general information in section 1 and 2 is not a
precondition for effectively exercising your right to cancel.